スイートピアノ・メロディーズ
type: MusicGroup
genre: japanese-instrumental
popularity: 31
followers: 3307
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a156c532ee3acfd6ebe1131c667b6317d643d41c4e82fccfa306f11d1f733ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2e6e419-571a-4bad-b101-45641aaf31c2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2e6e419-571a-4bad-b101-45641aaf31c2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c2e6e419-571a-4bad-b101-45641aaf31c2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1a156c532ee3acfd6ebe1131c667b6317d643d41c4e82fccfa306f11d1f733ff","name":"スイートピアノ・メロディーズ","registered_at":"2026-06-12T09:03:48Z","symbol":"NIM0250505","token_address":"0x79765e0980c393bcc829ededf0f2ce4f1e42b550","type":"artist","uuid":"c2e6e419-571a-4bad-b101-45641aaf31c2"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a156c532ee3acfd6ebe1131c667b6317d643d41c4e82fccfa306f11d1f733ff. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2e6e419-571a-4bad-b101-45641aaf31c2.json and https://artists.proofprofile.net/proofs/artist/c2e6e419-571a-4bad-b101-45641aaf31c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x1a156c532ee3acfd6ebe1131c667b6317d643d41c4e82fccfa306f11d1f733ff","name":"スイートピアノ・メロディーズ","registered_at":"2026-06-12T09:03:48Z","symbol":"NIM0250505","token_address":"0x79765e0980c393bcc829ededf0f2ce4f1e42b550","type":"artist","uuid":"c2e6e419-571a-4bad-b101-45641aaf31c2"}
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.143 J-POP
  type: MusicAlbum
  date published: 2024-09-09
  track: EMPIRE(オリジナル：Snow Man)(ピアノDUO)
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198519
    explicit: false
    by artist: スイートピアノ・メロディーズ
    in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.143 J-POP
      type: MusicAlbum
      date published: 2024-09-09
    genre: japanese-instrumental
    isrc code: JPB952407994
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-28T02:08:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5716170228c2c80a53070cf4a8c6232b3730d07175c60607e88934f021c46a96
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952407994
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5716170228c2c80a53070cf4a8c6232b3730d07175c60607e88934f021c46a96. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952407994.
      date published: 2026-07-02T16:51:38Z
    audio: EMPIRE(オリジナル：Snow Man)(ピアノDUO)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 158.812
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.437
      additional property: Energy
        type: PropertyValue
        value: 0.272
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.973
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.919
      additional property: Liveness
        type: PropertyValue
        value: 0.123
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.326
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.429
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: 歌を贈ろう(ドラマ「素晴らしき哉、先生！」主題歌)(オリジナル：竹内まりや)(ピアノDUO)
    type: MusicRecording
    duration: PT4M24S
    duration ms: 264991
    explicit: false
    by artist: スイートピアノ・メロディーズ
    in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.143 J-POP
      type: MusicAlbum
      date published: 2024-09-09
    genre: japanese-instrumental
    isrc code: JPB952407995
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-21T15:49:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x28f399b0dbd1d40692200df77692bd758dcef473f963bc42fdaeca24112df95d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956302
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956302
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952407995
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:30:09Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28f399b0dbd1d40692200df77692bd758dcef473f963bc42fdaeca24112df95d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952407995.
      date published: 2026-07-02T03:30:09Z
    audio: 歌を贈ろう(ドラマ「素晴らしき哉、先生！」主題歌)(オリジナル：竹内まりや)(ピアノDUO)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 142.477
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.618
      additional property: Energy
        type: PropertyValue
        value: 0.35
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.979
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.927
      additional property: Liveness
        type: PropertyValue
        value: 0.125
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.295
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.125 J-POP
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.119 J-POP
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.101 J-POP
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.94 J-POP
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.85 J-POP
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.83 J-POP
album: 連続テレビ小説「ブギウギ」劇中歌 ～ピアノアレンジ～
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.80 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.78 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.73 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.67 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
album: 80年代シティポップピアノ Vol.7 (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
album: 眠りを誘う80年代シティポップピアノ Vol.8
album: 80年代シティポップピアノ Vol.8
album: 眠りを誘う80年代シティポップピアノ Vol.7
album: 80年代シティポップピアノ Vol.7
album: 眠りを誘う80年代シティポップピアノ Vol.6
album: 80年代シティポップピアノ Vol.6
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.49 J-POP
album: ぐっすり眠れる癒しのピアノ2重奏 Vol.42 ~J-POP~
album: 眠りを誘う80年代シティポップピアノ Vol.5
album: 80年代シティポップピアノ Vol.5
album: 眠りを誘う80年代シティポップピアノ Vol.4
album: 眠りを誘う80年代シティポップピアノ Vol.3
album: 眠りを誘う80年代シティポップピアノ Vol.2
album: 80年代シティポップピアノ Vol.4
album: 80年代シティポップピアノ Vol.3
album: 80年代シティポップピアノ Vol.2
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.44 J-POP
album: ぐっすり眠れる癒しのピアノ2重奏 Vol.37 ~J-POP~
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.43 J-POP
album: ぐっすり眠れる癒しのピアノ2重奏 Vol.36 ~J-POP~
album: 眠りを誘う80年代シティポップピアノ Vol.1
album: 80年代シティポップピアノ Vol.1
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.41 J-POP
album: ぐっすり眠れる癒しのピアノ2重奏 Vol.34 ~J-POP~
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.40 J-POP
album: ぐっすり眠れる癒しのオルゴール集 ~Vol.11 ディズニーサウンド
album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.38 J-POP

Loudness (dB)
type: PropertyValue
value: -17.806

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.125 J-POP
type: MusicAlbum
date published: 2024-05-31
track: 全方向美少女 (オリジナル：乃紫)(ピアノDUO)
  type: MusicRecording
  duration: PT2M10S
  duration ms: 130419
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.125 J-POP
    type: MusicAlbum
    date published: 2024-05-31
  genre: japanese-instrumental
  isrc code: JPB952405160
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-08T00:11:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2187fb5b86f6766af88a93d49097e5b94e5a22ee16591901a404345efea2fc05
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952405160
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2187fb5b86f6766af88a93d49097e5b94e5a22ee16591901a404345efea2fc05. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952405160.
    date published: 2026-07-08T03:22:41Z
  audio: 全方向美少女 (オリジナル：乃紫)(ピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 169.736
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.449
    additional property: Energy
      type: PropertyValue
      value: 0.372
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.929
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.911
    additional property: Liveness
      type: PropertyValue
      value: 0.124
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.68
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.685
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 永久 -トコシエ-(アニメ「鬼滅の刃-柱稽古編」ED)(オリジナル：HYDE；MY FIRST STORY)(ピアノDUO)
  type: MusicRecording
  duration: PT4M14S
  duration ms: 254713
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.125 J-POP
    type: MusicAlbum
    date published: 2024-05-31
  genre: japanese-instrumental
  isrc code: JPB952405162
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T02:18:16+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf0463492d017017c70f05673853c22a3c0881b1b144e57ae110195901d01e39f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960500
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960500
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952405162
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T03:13:03Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0463492d017017c70f05673853c22a3c0881b1b144e57ae110195901d01e39f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952405162.
    date published: 2026-08-01T03:13:03Z
  audio: 永久 -トコシエ-(アニメ「鬼滅の刃-柱稽古編」ED)(オリジナル：HYDE；MY FIRST STORY)(ピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 167.626
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.481
    additional property: Energy
      type: PropertyValue
      value: 0.32
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.95
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.935
    additional property: Liveness
      type: PropertyValue
      value: 0.108
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.159
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.662
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.119 J-POP
type: MusicAlbum
date published: 2024-05-28
track: Bass Bon (オリジナル：Snow Man)(ピアノDUO)
  type: MusicRecording
  duration: PT3M22S
  duration ms: 202154
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.119 J-POP
    type: MusicAlbum
    date published: 2024-05-28
  genre: japanese-instrumental
  isrc code: JPB952404894
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T20:55:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfc4c1841aa635cad5117999b8bbce1517781e1ebc721d9408fd4811184be0045
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960317
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960317
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404894
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T21:35:24Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4c1841aa635cad5117999b8bbce1517781e1ebc721d9408fd4811184be0045. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404894.
    date published: 2026-07-30T21:35:24Z
  audio: Bass Bon (オリジナル：Snow Man)(ピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.667
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.582
    additional property: Energy
      type: PropertyValue
      value: 0.301
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.957
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.946
    additional property: Liveness
      type: PropertyValue
      value: 0.116
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.309
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.012
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Vroom Vroom Vroom (オリジナル：Snow Man)(ピアノDUO)
  type: MusicRecording
  duration: PT3M17S
  duration ms: 197989
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.119 J-POP
    type: MusicAlbum
    date published: 2024-05-28
  genre: japanese-instrumental
  isrc code: JPB952404895
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T12:53:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x684b991b3777ec54ea136184a039ee4774462fee73cb4aae4ef1c9fdef08e31d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960403
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960403
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404895
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T13:04:34Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684b991b3777ec54ea136184a039ee4774462fee73cb4aae4ef1c9fdef08e31d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404895.
    date published: 2026-07-31T13:04:34Z
  audio: Vroom Vroom Vroom (オリジナル：Snow Man)(ピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.454
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.546
    additional property: Energy
      type: PropertyValue
      value: 0.172
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.989
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.82
    additional property: Liveness
      type: PropertyValue
      value: 0.117
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.299
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.623
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: ガラライキュ！ (オリジナル：Snow Man)(ピアノDUO)
  type: MusicRecording
  duration: PT4M18S
  duration ms: 258265
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.119 J-POP
    type: MusicAlbum
    date published: 2024-05-28
  genre: japanese-instrumental
  isrc code: JPB952404896
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T11:40:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x71eb6f2804517307a3758cafced214efe5afd2f5e634d40218bc47bc37a138c5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960254
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960254
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: ガラライキュ！ (オリジナル：Snow Man)(ピアノDUO)
track: Two (オリジナル：Snow Man)(ピアノDUO)
track: Gotcha! (オリジナル：Snow Man)(ピアノDUO)
track: HYPNOSIS (オリジナル：Snow Man)(ピアノDUO)
track: Color me live… (オリジナル：Snow Man)(ピアノDUO)

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404896

OTSTimestamp
type: PropertyValue
value: 2026-07-30T12:06:10Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eb6f2804517307a3758cafced214efe5afd2f5e634d40218bc47bc37a138c5. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404896.
date published: 2026-07-30T12:06:10Z

ガラライキュ！ (オリジナル：Snow Man)(ピアノDUO)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 158.773
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.508
additional property: Energy
  type: PropertyValue
  value: 0.312
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.955
additional property: Instrumentalness
  type: PropertyValue
  value: 0.899
additional property: Liveness
  type: PropertyValue
  value: 0.132
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.496
additional property: Loudness (dB)
  type: PropertyValue
  value: -18.143
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Major

Two (オリジナル：Snow Man)(ピアノDUO)
type: MusicRecording
duration: PT4M32S
duration ms: 272283
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.119 J-POP
  type: MusicAlbum
  date published: 2024-05-28
genre: japanese-instrumental
isrc code: JPB952404897
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T20:30:39+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd54628fe3bf5669cd3bedad0e734180cec052554940e947f9f15c671f9ab896d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960311
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960311
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404897
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T20:45:02Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54628fe3bf5669cd3bedad0e734180cec052554940e947f9f15c671f9ab896d. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404897.
  date published: 2026-07-30T20:45:02Z
audio: Two (オリジナル：Snow Man)(ピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.01
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.523
  additional property: Energy
    type: PropertyValue
    value: 0.286
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.916
  additional property: Liveness
    type: PropertyValue
    value: 0.204
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.307
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.007
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Gotcha! (オリジナル：Snow Man)(ピアノDUO)
type: MusicRecording
duration: PT3M18S
duration ms: 198977
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.119 J-POP
  type: MusicAlbum
  date published: 2024-05-28
genre: japanese-instrumental
isrc code: JPB952404898
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:36:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77becb3fd4878b9ceb1eb132c79770f0e548870fa9988b7304ac2c510be54edf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404898
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77becb3fd4878b9ceb1eb132c79770f0e548870fa9988b7304ac2c510be54edf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404898.
  date published: 2026-07-08T03:20:19Z
audio: Gotcha! (オリジナル：Snow Man)(ピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.386
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.557
  additional property: Energy
    type: PropertyValue
    value: 0.35
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.903
  additional property: Liveness
    type: PropertyValue
    value: 0.127
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.442
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.117
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

HYPNOSIS (オリジナル：Snow Man)(ピアノDUO)
type: MusicRecording
duration: PT3M42S
duration ms: 222964
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.119 J-POP
  type: MusicAlbum
  date published: 2024-05-28
genre: japanese-instrumental
isrc code: JPB952404899
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T00:11:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd03b08e166add5062d776531c0a06e255dd7576d30e34ec7e3bccb7e4b5b11cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404899
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03b08e166add5062d776531c0a06e255dd7576d30e34ec7e3bccb7e4b5b11cc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404899.
  date published: 2026-07-08T03:22:41Z
audio: HYPNOSIS (オリジナル：Snow Man)(ピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 158.81
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.462
  additional property: Energy
    type: PropertyValue
    value: 0.44
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.942
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.559
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.855
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Color me live… (オリジナル：Snow Man)(ピアノDUO)
type: MusicRecording
duration: PT3M27S
duration ms: 207581
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.119 J-POP
  type: MusicAlbum
  date published: 2024-05-28
genre: japanese-instrumental
isrc code: JPB952404900
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:03:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7243f048a9408de3c27549066f7a637bfbadd619d863b845a1e4e001069762bb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404900
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7243f048a9408de3c27549066f7a637bfbadd619d863b845a1e4e001069762bb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952404900.
  date published: 2026-07-08T03:20:19Z
audio: Color me live… (オリジナル：Snow Man)(ピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.788
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.546
  additional property: Energy
    type: PropertyValue
    value: 0.258
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.977
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.947
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.465
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.678
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.101 J-POP
type: MusicAlbum
date published: 2024-03-12

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.94 J-POP
type: MusicAlbum
date published: 2024-02-16
track: Dear sunrise (アニメ「ONE PIECE」EDテーマ)(オリジナル：大槻マキ)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151802
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.94 J-POP
    type: MusicAlbum
    date published: 2024-02-16
  genre: japanese-instrumental
  isrc code: JPB952401439
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-08T00:34:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xefb79e8b0df8ed139c9b34db8bede7ead43e0e3ed0245570ece55710985f8264
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952401439
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefb79e8b0df8ed139c9b34db8bede7ead43e0e3ed0245570ece55710985f8264. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952401439.
    date published: 2026-07-08T03:22:41Z
  audio: Dear sunrise (アニメ「ONE PIECE」EDテーマ)(オリジナル：大槻マキ)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.995
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.647
    additional property: Energy
      type: PropertyValue
      value: 0.296
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.973
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.923
    additional property: Liveness
      type: PropertyValue
      value: 0.099
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.569
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.411
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 冬と春 (オリジナル：back number)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M17S
  duration ms: 257368
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.94 J-POP
    type: MusicAlbum
    date published: 2024-02-16
  genre: japanese-instrumental
  isrc code: JPB952401442
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:45:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x35b75bb93e263c88edaeb323afc7c8d8b48b16a72caee8201fb8a45351541277
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952401442
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b75bb93e263c88edaeb323afc7c8d8b48b16a72caee8201fb8a45351541277. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952401442.
    date published: 2026-07-08T03:20:19Z
  audio: 冬と春 (オリジナル：back number)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.683
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.523
    additional property: Energy
      type: PropertyValue
      value: 0.238
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.977
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.928
    additional property: Liveness
      type: PropertyValue
      value: 0.102
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.392
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.891
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: マイナーピース (アニメ「ようこそ実力至上主義の教室へ」OPテーマ)(オリジナル：ZAQ)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M11S
  duration ms: 191263
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.94 J-POP
    type: MusicAlbum
    date published: 2024-02-16
  genre: japanese-instrumental
  isrc code: JPB952401443
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T01:07:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x39e6c862069a5cb6a73620c6748fe8b367676b37d7166c071eefb7ad0a3c3a25
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960494
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960494
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: マイナーピース (アニメ「ようこそ実力至上主義の教室へ」OPテーマ)(オリジナル：ZAQ)(アコースティック＆エレクトリックピアノDUO)

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952401443

OTSTimestamp
type: PropertyValue
value: 2026-08-01T01:44:32Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e6c862069a5cb6a73620c6748fe8b367676b37d7166c071eefb7ad0a3c3a25. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952401443.
date published: 2026-08-01T01:44:32Z

マイナーピース (アニメ「ようこそ実力至上主義の教室へ」OPテーマ)(オリジナル：ZAQ)(アコースティック＆エレクトリックピアノDUO)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 149.301
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.547
additional property: Energy
  type: PropertyValue
  value: 0.339
additional property: Speechiness
  type: PropertyValue
  value: 0.031
additional property: Acousticness
  type: PropertyValue
  value: 0.977
additional property: Instrumentalness
  type: PropertyValue
  value: 0.941
additional property: Liveness
  type: PropertyValue
  value: 0.121
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.623
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.899
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.85 J-POP
type: MusicAlbum
date published: 2024-01-11
track: アイノロイ (ドラマ「ゆりあ先生の赤い糸」主題歌)(オリジナル：矢井田 瞳)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221969
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.85 J-POP
    type: MusicAlbum
    date published: 2024-01-11
  genre: japanese-instrumental
  isrc code: JPB952400091
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T23:49:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7585e4b797243cc59b60c3c4a8e373108dcaa3452f95e4dd79f6c727a308c9aa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960327
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960327
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952400091
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T00:26:26Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7585e4b797243cc59b60c3c4a8e373108dcaa3452f95e4dd79f6c727a308c9aa. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952400091.
    date published: 2026-07-31T00:26:26Z
  audio: アイノロイ (ドラマ「ゆりあ先生の赤い糸」主題歌)(オリジナル：矢井田 瞳)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 172.373
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.442
    additional property: Energy
      type: PropertyValue
      value: 0.244
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.961
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.941
    additional property: Liveness
      type: PropertyValue
      value: 0.175
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.19
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.757
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.83 J-POP
type: MusicAlbum
date published: 2023-12-28
track: BOY (アニメ「王様ランキング」OPテーマ)(オリジナル：King Gnu)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234467
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.83 J-POP
    type: MusicAlbum
    date published: 2023-12-28
  genre: japanese-instrumental
  isrc code: JPB952323037
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T02:44:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd17d85f6884c7c4da45ca3b7146ebe3da57eda76bb8ee57916260b2dc9beef4c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960506
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960506
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952323037
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T03:50:58Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17d85f6884c7c4da45ca3b7146ebe3da57eda76bb8ee57916260b2dc9beef4c. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952323037.
    date published: 2026-08-01T03:50:58Z
  audio: BOY (アニメ「王様ランキング」OPテーマ)(オリジナル：King Gnu)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 124.796
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.574
    additional property: Energy
      type: PropertyValue
      value: 0.289
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.972
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.925
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.343
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.002
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 白日 (ドラマ「イノセンス 冤罪弁護士」主題歌)(オリジナル：King Gnu)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M37S
  duration ms: 277460
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.83 J-POP
    type: MusicAlbum
    date published: 2023-12-28
  genre: japanese-instrumental
  isrc code: JPB952323039
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T10:02:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x442c769738dc48a3e4cb941c86bcc82427faa48ac1b909d719693b3efbcb2472
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952323039
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442c769738dc48a3e4cb941c86bcc82427faa48ac1b909d719693b3efbcb2472. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952323039.
    date published: 2026-07-08T03:20:19Z
  audio: 白日 (ドラマ「イノセンス 冤罪弁護士」主題歌)(オリジナル：King Gnu)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.225
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.522
    additional property: Energy
      type: PropertyValue
      value: 0.312
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.979
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.936
    additional property: Liveness
      type: PropertyValue
      value: 0.089
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.406
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.867
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

連続テレビ小説「ブギウギ」劇中歌 ～ピアノアレンジ～
type: MusicAlbum
date published: 2023-12-22

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.80 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
type: MusicAlbum
date published: 2023-12-08

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.78 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
type: MusicAlbum
date published: 2023-12-05
track: 踊り子(from Album "replica")(オリジナル：Vaundy)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228146
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.78 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
    type: MusicAlbum
    date published: 2023-12-05
  popularity: 2
  genre: japanese-instrumental
  isrc code: JPB952320573
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T21:39:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x515c166fa9f8d6130dc06f7749efdf6ad77a0355adf60414fb7539a56a7621e6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952320573
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515c166fa9f8d6130dc06f7749efdf6ad77a0355adf60414fb7539a56a7621e6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952320573.
    date published: 2026-07-08T03:22:41Z
  audio: 踊り子(from Album "replica")(オリジナル：Vaundy)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 156.763
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.448
    additional property: Energy
      type: PropertyValue
      value: 0.348
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.988
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.936
    additional property: Liveness
      type: PropertyValue
      value: 0.121
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.248
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.009
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 恋風邪にのせて(from Album "replica")(オリジナル：Vaundy)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M16S
  duration ms: 256467
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.78 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
    type: MusicAlbum
    date published: 2023-12-05
  popularity: 2
  genre: japanese-instrumental
  isrc code: JPB952320575
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T22:24:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xedbcb7e08a334825b994aa662cb73d5c782341eb5529fc3b8bdede2edbd4f822
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952320575
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbcb7e08a334825b994aa662cb73d5c782341eb5529fc3b8bdede2edbd4f822. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952320575.
    date published: 2026-07-08T03:22:41Z
  audio: 恋風邪にのせて(from Album "replica")(オリジナル：Vaundy)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.26
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.634
    additional property: Energy
      type: PropertyValue
      value: 0.274
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.977
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.947
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.253
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.301
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 怪獣の花唄(from Album "replica")(オリジナル：Vaundy)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223659
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.78 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
    type: MusicAlbum
    date published: 2023-12-05
  popularity: 4
  genre: japanese-instrumental
  isrc code: JPB952320579
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T01:06:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x81806c5ab4f538dc7431c2d4904c11798ce2fa612867445e867f5766dfd9b0c5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 怪獣の花唄(from Album "replica")(オリジナル：Vaundy)(アコースティック＆エレクトリックピアノDUO)

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952320579

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81806c5ab4f538dc7431c2d4904c11798ce2fa612867445e867f5766dfd9b0c5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952320579.
date published: 2026-07-08T03:20:19Z

怪獣の花唄(from Album "replica")(オリジナル：Vaundy)(アコースティック＆エレクトリックピアノDUO)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 152
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.511
additional property: Energy
  type: PropertyValue
  value: 0.372
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.964
additional property: Instrumentalness
  type: PropertyValue
  value: 0.949
additional property: Liveness
  type: PropertyValue
  value: 0.126
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.461
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.953
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.73 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
type: MusicAlbum
date published: 2023-11-10
track: 晩餐歌 (オリジナル：tuki.)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M39S
  duration ms: 219581
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.73 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
    type: MusicAlbum
    date published: 2023-11-10
  genre: japanese-instrumental
  isrc code: JPB952319191
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T04:45:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5851fcf2d1f5dd1e89cea6957c73d6dc4e6656d0dc88530d54b5bd4933edd18f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956889
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956889
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319191
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5851fcf2d1f5dd1e89cea6957c73d6dc4e6656d0dc88530d54b5bd4933edd18f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319191.
    date published: 2026-07-06T06:56:49Z
  audio: 晩餐歌 (オリジナル：tuki.)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.033
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.617
    additional property: Energy
      type: PropertyValue
      value: 0.322
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.97
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.929
    additional property: Liveness
      type: PropertyValue
      value: 0.131
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.586
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.822
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: MAGIC WORD (オリジナル：King ＆ Prince)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT2M15S
  duration ms: 135981
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.73 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
    type: MusicAlbum
    date published: 2023-11-10
  genre: japanese-instrumental
  isrc code: JPB952319192
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T16:45:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa316959cf59f75215bfb4ec2e2d01f35dfc184dd6e0b7470a90268f76b0fa5b1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960441
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960441
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319192
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T17:29:52Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa316959cf59f75215bfb4ec2e2d01f35dfc184dd6e0b7470a90268f76b0fa5b1. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319192.
    date published: 2026-07-31T17:29:52Z
  audio: MAGIC WORD (オリジナル：King ＆ Prince)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.333
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.535
    additional property: Energy
      type: PropertyValue
      value: 0.302
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.952
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.903
    additional property: Liveness
      type: PropertyValue
      value: 0.124
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.5
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.56
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Flashback feat. Daichi Yamamoto (ドラマ「ONE DAY～聖夜のから騒ぎ～」主題歌)(オリジナル：ミイナ・オカベ)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M27S
  duration ms: 267793
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.73 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
    type: MusicAlbum
    date published: 2023-11-10
  genre: japanese-instrumental
  isrc code: JPB952319194
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T04:16:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5c6759e9a7773b1315199077aa2c1a91344a905eefe5f9089a90cd42b536877e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960513
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Flashback feat. Daichi Yamamoto (ドラマ「ONE DAY～聖夜のから騒ぎ～」主題歌)(オリジナル：ミイナ・オカベ)(アコースティック＆エレクトリックピアノDUO)
track: UP TO ME! (アニメ「七つの大罪 黙示録の四騎士」オープニング)(オリジナル：Little Glee Monster)(アコースティック＆エレクトリックピアノDUO)
track: ネクタリン (教育番組「天才てれびくん」テーマソング)(オリジナル：マカロニえんぴつ)(アコースティック＆エレクトリックピアノDUO)
track: 夏暁 (アニメ「GAMERA -Rebirth-」主題歌)(オリジナル：WANIMA)(アコースティック＆エレクトリックピアノDUO)

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319194

OTSTimestamp
type: PropertyValue
value: 2026-08-01T04:52:22Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6759e9a7773b1315199077aa2c1a91344a905eefe5f9089a90cd42b536877e. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319194.
date published: 2026-08-01T04:52:22Z

Flashback feat. Daichi Yamamoto (ドラマ「ONE DAY～聖夜のから騒ぎ～」主題歌)(オリジナル：ミイナ・オカベ)(アコースティック＆エレクトリックピアノDUO)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 114.603
additional property: Musical Key
  type: PropertyValue
  value: 8
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.644
additional property: Energy
  type: PropertyValue
  value: 0.231
additional property: Speechiness
  type: PropertyValue
  value: 0.042
additional property: Acousticness
  type: PropertyValue
  value: 0.983
additional property: Instrumentalness
  type: PropertyValue
  value: 0.944
additional property: Liveness
  type: PropertyValue
  value: 0.158
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.545
additional property: Loudness (dB)
  type: PropertyValue
  value: -20.219
additional property: Key Name
  type: PropertyValue
  value: Ab
additional property: Mode Name
  type: PropertyValue
  value: Minor

UP TO ME! (アニメ「七つの大罪 黙示録の四騎士」オープニング)(オリジナル：Little Glee Monster)(アコースティック＆エレクトリックピアノDUO)
type: MusicRecording
duration: PT3M27S
duration ms: 207009
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.73 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
  type: MusicAlbum
  date published: 2023-11-10
genre: japanese-instrumental
isrc code: JPB952319195
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T04:28:26+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x85e8a6786c5acb738ffc1d9a6b9455061207ac2380659f9ea3cdb118f65e60b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319195
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T04:52:22Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e8a6786c5acb738ffc1d9a6b9455061207ac2380659f9ea3cdb118f65e60b7. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319195.
  date published: 2026-08-01T04:52:22Z
audio: UP TO ME! (アニメ「七つの大罪 黙示録の四騎士」オープニング)(オリジナル：Little Glee Monster)(アコースティック＆エレクトリックピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 152.632
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.555
  additional property: Energy
    type: PropertyValue
    value: 0.389
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.95
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.944
  additional property: Liveness
    type: PropertyValue
    value: 0.149
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.653
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.381
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

ネクタリン (教育番組「天才てれびくん」テーマソング)(オリジナル：マカロニえんぴつ)(アコースティック＆エレクトリックピアノDUO)
type: MusicRecording
duration: PT3M7S
duration ms: 187949
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.73 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
  type: MusicAlbum
  date published: 2023-11-10
genre: japanese-instrumental
isrc code: JPB952319196
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T12:11:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x24a5e97d6057238f9724466550316321a4f794095ac8beac653da2d947fb488f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960403
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960403
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319196
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:04:34Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a5e97d6057238f9724466550316321a4f794095ac8beac653da2d947fb488f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319196.
  date published: 2026-07-31T13:04:34Z
audio: ネクタリン (教育番組「天才てれびくん」テーマソング)(オリジナル：マカロニえんぴつ)(アコースティック＆エレクトリックピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.792
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.658
  additional property: Energy
    type: PropertyValue
    value: 0.326
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.945
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.937
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.659
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.702
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

夏暁 (アニメ「GAMERA -Rebirth-」主題歌)(オリジナル：WANIMA)(アコースティック＆エレクトリックピアノDUO)
type: MusicRecording
duration: PT3M45S
duration ms: 225624
explicit: false
by artist: おやすみベイビー
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.73 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
  type: MusicAlbum
  date published: 2023-11-10
isrc code: JPB952319197
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T02:14:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe30c214823ba2bd52fe1493184cd974da7516c20087a5d51b4e8d93f25e8d174
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319197
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30c214823ba2bd52fe1493184cd974da7516c20087a5d51b4e8d93f25e8d174. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952319197.
  date published: 2026-08-01T03:13:03Z
audio: 夏暁 (アニメ「GAMERA -Rebirth-」主題歌)(オリジナル：WANIMA)(アコースティック＆エレクトリックピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.287
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.457
  additional property: Energy
    type: PropertyValue
    value: 0.442
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.93
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.882
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.595
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.157
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.67 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
type: MusicAlbum
date published: 2023-10-04
track: Relay～杜の詩 (オリジナル：サザンオールスターズ)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249324
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.67 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
    type: MusicAlbum
    date published: 2023-10-04
  genre: japanese-instrumental
  isrc code: JPB952316370
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T00:58:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa7390ea04c07185e5091bfb1b1b78fbf465b69dca35a7d583ab89c9d712b0544
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952316370
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7390ea04c07185e5091bfb1b1b78fbf465b69dca35a7d583ab89c9d712b0544. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952316370.
    date published: 2026-07-08T03:20:19Z
  audio: Relay～杜の詩 (オリジナル：サザンオールスターズ)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 169.768
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.526
    additional property: Energy
      type: PropertyValue
      value: 0.201
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.979
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.917
    additional property: Liveness
      type: PropertyValue
      value: 0.146
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.336
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.315
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: きみいろ (オリジナル：King & Prince 永瀬廉)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M45S
  duration ms: 285600
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.67 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
    type: MusicAlbum
    date published: 2023-10-04
  genre: japanese-instrumental
  isrc code: JPB952316371
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-08T00:12:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8f29bfc6e28c644b5ef4a322cac1b50f2220ab0a53e4390de39094183174c9e2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952316371
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f29bfc6e28c644b5ef4a322cac1b50f2220ab0a53e4390de39094183174c9e2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952316371.
    date published: 2026-07-08T03:22:41Z
  audio: きみいろ (オリジナル：King & Prince 永瀬廉)(アコースティック＆エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 115.259
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.578
    additional property: Energy
      type: PropertyValue
      value: 0.3
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.966
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.901
    additional property: Liveness
      type: PropertyValue
      value: 0.169
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.374
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.454
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 最高到達点 (アニメ「ワンピース」 主題歌)(オリジナル：SEKAI NO OWRI)(アコースティック＆エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221062
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.67 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
    type: MusicAlbum
    date published: 2023-10-04
  genre: japanese-instrumental
  isrc code: JPB952316373
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T01:24:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe92ebbabb23835b48de2a3eb7a374015618125c0a725758b7cb0c5b23481df10
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960494
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960494
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 最高到達点 (アニメ「ワンピース」 主題歌)(オリジナル：SEKAI NO OWRI)(アコースティック＆エレクトリックピアノDUO)
track: 唱 (ユニバーサル･スタジオ･ジャパン「ゾンビ・デ・ダンス」新テーマソング)(オリジナル：Ado)(アコースティック＆エレクトリックピアノDUO)
track: 愛し生きること (オリジナル：King & Prince)(アコースティック＆エレクトリックピアノDUO)

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952316373

OTSTimestamp
type: PropertyValue
value: 2026-08-01T01:44:32Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92ebbabb23835b48de2a3eb7a374015618125c0a725758b7cb0c5b23481df10. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952316373.
date published: 2026-08-01T01:44:32Z

最高到達点 (アニメ「ワンピース」 主題歌)(オリジナル：SEKAI NO OWRI)(アコースティック＆エレクトリックピアノDUO)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 140.401
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.533
additional property: Energy
  type: PropertyValue
  value: 0.364
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.949
additional property: Instrumentalness
  type: PropertyValue
  value: 0.87
additional property: Liveness
  type: PropertyValue
  value: 0.147
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.469
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.617
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

唱 (ユニバーサル･スタジオ･ジャパン「ゾンビ・デ・ダンス」新テーマソング)(オリジナル：Ado)(アコースティック＆エレクトリックピアノDUO)
type: MusicRecording
duration: PT3M14S
duration ms: 194082
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.67 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
  type: MusicAlbum
  date published: 2023-10-04
genre: japanese-instrumental
isrc code: JPB952316376
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T14:10:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81c2b9ca265108a4f21fae769229b259bb67010d2d8080ff14aaab2b4d05ff60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960418
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960418
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952316376
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:15Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c2b9ca265108a4f21fae769229b259bb67010d2d8080ff14aaab2b4d05ff60. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952316376.
  date published: 2026-07-31T15:20:15Z
audio: 唱 (ユニバーサル･スタジオ･ジャパン「ゾンビ・デ・ダンス」新テーマソング)(オリジナル：Ado)(アコースティック＆エレクトリックピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.773
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.574
  additional property: Energy
    type: PropertyValue
    value: 0.43
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.961
  additional property: Liveness
    type: PropertyValue
    value: 0.149
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.333
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.181
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

愛し生きること (オリジナル：King & Prince)(アコースティック＆エレクトリックピアノDUO)
type: MusicRecording
duration: PT4M13S
duration ms: 253433
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.67 J-POP (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
  type: MusicAlbum
  date published: 2023-10-04
genre: japanese-instrumental
isrc code: JPB952316379
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:51:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe85c2d595525141bb6f4a0b17093156882205c700e5671896f9fefbea1543009
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952316379
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85c2d595525141bb6f4a0b17093156882205c700e5671896f9fefbea1543009. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952316379.
  date published: 2026-07-08T03:20:19Z
audio: 愛し生きること (オリジナル：King & Prince)(アコースティック＆エレクトリックピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.049
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.486
  additional property: Energy
    type: PropertyValue
    value: 0.345
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.913
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.484
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.087
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

80年代シティポップピアノ Vol.7 (アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集～Vol.56 J-POP)
type: MusicAlbum
date published: 2023-10-04

眠りを誘う80年代シティポップピアノ Vol.8
type: MusicAlbum
date published: 2023-07-28

80年代シティポップピアノ Vol.8
type: MusicAlbum
date published: 2023-07-28

眠りを誘う80年代シティポップピアノ Vol.7
type: MusicAlbum
date published: 2023-06-28

80年代シティポップピアノ Vol.7
type: MusicAlbum
date published: 2023-06-28

眠りを誘う80年代シティポップピアノ Vol.6
type: MusicAlbum
date published: 2023-06-27

80年代シティポップピアノ Vol.6
type: MusicAlbum
date published: 2023-06-27

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.49 J-POP
type: MusicAlbum
date published: 2023-06-26
track: DEAR MY LOVER (ドラマ「王様に捧ぐ薬指」主題歌)(オリジナル:Hey! Say! JUMP)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M55S
  duration ms: 295988
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.49 J-POP
    type: MusicAlbum
    date published: 2023-06-26
  genre: japanese-instrumental
  isrc code: JPB952310833
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T15:26:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfe8aa281f76a0e346435436b5f444fd369252f2251032e7c16d2ec163f692290
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960273
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960273
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952310833
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T15:42:38Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8aa281f76a0e346435436b5f444fd369252f2251032e7c16d2ec163f692290. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952310833.
    date published: 2026-07-30T15:42:38Z
  audio: DEAR MY LOVER (ドラマ「王様に捧ぐ薬指」主題歌)(オリジナル:Hey! Say! JUMP)(アコースティック&エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 148.592
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.548
    additional property: Energy
      type: PropertyValue
      value: 0.337
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.965
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.914
    additional property: Liveness
      type: PropertyValue
      value: 0.152
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.43
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.885
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: なにもの (ドラマ「だが、情熱はある」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177667
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.49 J-POP
    type: MusicAlbum
    date published: 2023-06-26
  genre: japanese-instrumental
  isrc code: JPB952310834
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T15:33:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x78e2c7425cf483cf28bd7aa1a2b50f1df00fedddeb016095baf7a6de20c68ee6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952310834
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e2c7425cf483cf28bd7aa1a2b50f1df00fedddeb016095baf7a6de20c68ee6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952310834.
    date published: 2026-07-08T08:56:20Z
  audio: なにもの (ドラマ「だが、情熱はある」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.603
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.592
    additional property: Energy
      type: PropertyValue
      value: 0.358
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.963
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.866
    additional property: Liveness
      type: PropertyValue
      value: 0.113
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.595
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.841
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Magic (TVCM「Coke STUDIO Magic」テーマソング)(オリジナル:Mrs. GREEN APPLE)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M23S
  duration ms: 263180
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.49 J-POP
    type: MusicAlbum
    date published: 2023-06-26
  genre: japanese-instrumental
  isrc code: JPB952310840
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-11T01:07:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa1690ed4bd1d7fc5fe6bb693f76a0ca38d145c716c73e6f4c8a04e1c530ed567
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Magic (TVCM「Coke STUDIO Magic」テーマソング)(オリジナル:Mrs. GREEN APPLE)(アコースティック&エレクトリックピアノDUO)

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952310840

OTSTimestamp
type: PropertyValue
value: 2026-06-13T13:32:09Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1690ed4bd1d7fc5fe6bb693f76a0ca38d145c716c73e6f4c8a04e1c530ed567. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952310840.
date published: 2026-06-13T13:32:09Z

Magic (TVCM「Coke STUDIO Magic」テーマソング)(オリジナル:Mrs. GREEN APPLE)(アコースティック&エレクトリックピアノDUO)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 130.254
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.6
additional property: Energy
  type: PropertyValue
  value: 0.303
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.956
additional property: Instrumentalness
  type: PropertyValue
  value: 0.913
additional property: Liveness
  type: PropertyValue
  value: 0.11
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.328
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.519
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

ぐっすり眠れる癒しのピアノ2重奏 Vol.42 ~J-POP~
type: MusicAlbum
date published: 2023-06-26

眠りを誘う80年代シティポップピアノ Vol.5
type: MusicAlbum
date published: 2023-05-30

80年代シティポップピアノ Vol.5
type: MusicAlbum
date published: 2023-05-30

眠りを誘う80年代シティポップピアノ Vol.4
type: MusicAlbum
date published: 2023-04-25

眠りを誘う80年代シティポップピアノ Vol.3
type: MusicAlbum
date published: 2023-04-25
track: 想い出がいっぱい (オリジナル:H2O)(眠りを誘うシティポップピアノ)
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280307
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: 眠りを誘う80年代シティポップピアノ Vol.3
    type: MusicAlbum
    date published: 2023-04-25
  genre: japanese-instrumental
  isrc code: JPB952307606
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T01:17:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc66b26b61574e65066ae4981cae6cfcab6580175fffc047f49e6180280942d64
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960494
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960494
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307606
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T01:44:32Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66b26b61574e65066ae4981cae6cfcab6580175fffc047f49e6180280942d64. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307606.
    date published: 2026-08-01T01:44:32Z
  audio: 想い出がいっぱい (オリジナル:H2O)(眠りを誘うシティポップピアノ)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 117.996
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.651
    additional property: Energy
      type: PropertyValue
      value: 0.242
    additional property: Speechiness
      type: PropertyValue
      value: 0.049
    additional property: Acousticness
      type: PropertyValue
      value: 0.987
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.915
    additional property: Liveness
      type: PropertyValue
      value: 0.123
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.314
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.334
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

眠りを誘う80年代シティポップピアノ Vol.2
type: MusicAlbum
date published: 2023-04-25

80年代シティポップピアノ Vol.4
type: MusicAlbum
date published: 2023-04-25

80年代シティポップピアノ Vol.3
type: MusicAlbum
date published: 2023-04-25
track: 想い出がいっぱい (オリジナル:H2O)(シティポップピアノ)
  type: MusicRecording
  duration: PT3M26S
  duration ms: 206572
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: 80年代シティポップピアノ Vol.3
    type: MusicAlbum
    date published: 2023-04-25
  genre: japanese-instrumental
  isrc code: JPB952307536
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-08T00:02:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2f301774937f7bd56f0753167dac2f7e2b18bc2bf3a229392fb99311f5c700aa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307536
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f301774937f7bd56f0753167dac2f7e2b18bc2bf3a229392fb99311f5c700aa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307536.
    date published: 2026-07-08T03:22:41Z
  audio: 想い出がいっぱい (オリジナル:H2O)(シティポップピアノ)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.149
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.583
    additional property: Energy
      type: PropertyValue
      value: 0.257
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.982
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.886
    additional property: Liveness
      type: PropertyValue
      value: 0.15
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.48
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.908
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

80年代シティポップピアノ Vol.2
type: MusicAlbum
date published: 2023-04-25

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.44 J-POP
type: MusicAlbum
date published: 2023-04-18
track: 美しい鰭 (劇場版「名探偵コナン 黒鉄の魚影(サブマリン)」主題歌)(オリジナル:スピッツ)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M32S
  duration ms: 212730
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.44 J-POP
    type: MusicAlbum
    date published: 2023-04-18
  genre: japanese-instrumental
  isrc code: JPB952307122
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T14:38:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x31d006fc89200954c0c9db5d17c3aacd5cc5f463768e64e10d34d7e973fb6074
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960121
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960121
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307122
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T15:22:21Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d006fc89200954c0c9db5d17c3aacd5cc5f463768e64e10d34d7e973fb6074. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307122.
    date published: 2026-07-29T15:22:21Z
  audio: 美しい鰭 (劇場版「名探偵コナン 黒鉄の魚影(サブマリン)」主題歌)(オリジナル:スピッツ)(アコースティック&エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.934
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.547
    additional property: Energy
      type: PropertyValue
      value: 0.244
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.974
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.932
    additional property: Liveness
      type: PropertyValue
      value: 0.12
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.516
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.644
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: アイドル (アニメ「推しの子」主題歌)(オリジナル:YOASOBI)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M35S
  duration ms: 215095
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.44 J-POP
    type: MusicAlbum
    date published: 2023-04-18
  genre: japanese-instrumental
  isrc code: JPB952307124
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T20:54:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x91451015c1235dfdf5425bbdef40b7d937b49e291d606a6076c8a90ba17c69f3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307124
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91451015c1235dfdf5425bbdef40b7d937b49e291d606a6076c8a90ba17c69f3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307124.
    date published: 2026-07-08T03:20:19Z
  audio: アイドル (アニメ「推しの子」主題歌)(オリジナル:YOASOBI)(アコースティック&エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 162.906
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.401
    additional property: Energy
      type: PropertyValue
      value: 0.4
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.959
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.913
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.407
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.233
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: あいことば (オリジナル:Snow Man)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M47S
  duration ms: 287204
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.44 J-POP
    type: MusicAlbum
    date published: 2023-04-18
  genre: japanese-instrumental
  isrc code: JPB952307127
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T21:44:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x18bea7427ba63aef9ce5ced70b3225d102af8d1c29de47de293372a3f2b4dd9a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960150
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960150
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: あいことば (オリジナル:Snow Man)(アコースティック&エレクトリックピアノDUO)

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307127

OTSTimestamp
type: PropertyValue
value: 2026-07-29T21:51:49Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bea7427ba63aef9ce5ced70b3225d102af8d1c29de47de293372a3f2b4dd9a. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307127.
date published: 2026-07-29T21:51:49Z

あいことば (オリジナル:Snow Man)(アコースティック&エレクトリックピアノDUO)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 113.93
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.604
additional property: Energy
  type: PropertyValue
  value: 0.266
additional property: Speechiness
  type: PropertyValue
  value: 0.031
additional property: Acousticness
  type: PropertyValue
  value: 0.99
additional property: Instrumentalness
  type: PropertyValue
  value: 0.94
additional property: Liveness
  type: PropertyValue
  value: 0.191
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.306
additional property: Loudness (dB)
  type: PropertyValue
  value: -18.999
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

ぐっすり眠れる癒しのピアノ2重奏 Vol.37 ~J-POP~
type: MusicAlbum
date published: 2023-04-18
track: 美しい鰭 (劇場版「名探偵コナン 黒鉄の魚影(サブマリン)」主題歌)(オリジナル:スピッツ)(ぐっすり眠れるピアノ2重奏)
  type: MusicRecording
  duration: PT4M45S
  duration ms: 285409
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: ぐっすり眠れる癒しのピアノ2重奏 Vol.37 ~J-POP~
    type: MusicAlbum
    date published: 2023-04-18
  genre: japanese-instrumental
  isrc code: JPB952307192
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T01:05:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xed091b6152015473d275d04d239cad2ebccf1e852de35bdd6f79be50319ede34
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307192
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed091b6152015473d275d04d239cad2ebccf1e852de35bdd6f79be50319ede34. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307192.
    date published: 2026-07-08T03:20:19Z
  audio: 美しい鰭 (劇場版「名探偵コナン 黒鉄の魚影(サブマリン)」主題歌)(オリジナル:スピッツ)(ぐっすり眠れるピアノ2重奏)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.178
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.656
    additional property: Energy
      type: PropertyValue
      value: 0.236
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.985
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.923
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.498
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.217
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 絆の奇跡 (アニメ「鬼滅の刃 -刀鍛冶の里編-」オープニングテーマ)(オリジナル:MAN WITH A MISSION × milet)(ぐっすり眠れるピアノ2重奏)
  type: MusicRecording
  duration: PT5M4S
  duration ms: 304691
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: ぐっすり眠れる癒しのピアノ2重奏 Vol.37 ~J-POP~
    type: MusicAlbum
    date published: 2023-04-18
  genre: japanese-instrumental
  isrc code: JPB952307193
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T21:34:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7de21b7f667d1325a90d0795ff08b24165b8a3a0fafde07e7aecce7e97ecfbca
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960473
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960473
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307193
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T22:27:44Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de21b7f667d1325a90d0795ff08b24165b8a3a0fafde07e7aecce7e97ecfbca. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307193.
    date published: 2026-07-31T22:27:44Z
  audio: 絆の奇跡 (アニメ「鬼滅の刃 -刀鍛冶の里編-」オープニングテーマ)(オリジナル:MAN WITH A MISSION × milet)(ぐっすり眠れるピアノ2重奏)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.046
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.601
    additional property: Energy
      type: PropertyValue
      value: 0.357
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.958
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.933
    additional property: Liveness
      type: PropertyValue
      value: 0.157
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.21
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.627
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: アイドル (アニメ「推しの子」主題歌)(オリジナル:YOASOBI)(ぐっすり眠れるピアノ2重奏)
  type: MusicRecording
  duration: PT4M50S
  duration ms: 290230
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: ぐっすり眠れる癒しのピアノ2重奏 Vol.37 ~J-POP~
    type: MusicAlbum
    date published: 2023-04-18
  genre: japanese-instrumental
  isrc code: JPB952307194
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T08:15:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6aece0494322e27b488e5f20bd935add53159bcd3a22d86937a88d21831a434a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960370
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960370
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: アイドル (アニメ「推しの子」主題歌)(オリジナル:YOASOBI)(ぐっすり眠れるピアノ2重奏)
track: あいことば (オリジナル:Snow Man)(ぐっすり眠れるピアノ2重奏)

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307194

OTSTimestamp
type: PropertyValue
value: 2026-07-31T08:38:45Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aece0494322e27b488e5f20bd935add53159bcd3a22d86937a88d21831a434a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307194.
date published: 2026-07-31T08:38:45Z

アイドル (アニメ「推しの子」主題歌)(オリジナル:YOASOBI)(ぐっすり眠れるピアノ2重奏)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 134.641
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.344
additional property: Energy
  type: PropertyValue
  value: 0.319
additional property: Speechiness
  type: PropertyValue
  value: 0.036
additional property: Acousticness
  type: PropertyValue
  value: 0.969
additional property: Instrumentalness
  type: PropertyValue
  value: 0.95
additional property: Liveness
  type: PropertyValue
  value: 0.106
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.307
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.239
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

あいことば (オリジナル:Snow Man)(ぐっすり眠れるピアノ2重奏)
type: MusicRecording
duration: PT6M25S
duration ms: 385704
explicit: false
by artist: スイートピアノ・メロディーズ
in album: ぐっすり眠れる癒しのピアノ2重奏 Vol.37 ~J-POP~
  type: MusicAlbum
  date published: 2023-04-18
genre: japanese-instrumental
isrc code: JPB952307197
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T11:41:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9447460159f69a5104790060d37622c52d850dc9619b4ffe8d7e3d9192d497e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307197
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9447460159f69a5104790060d37622c52d850dc9619b4ffe8d7e3d9192d497e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952307197.
  date published: 2026-07-31T12:24:41Z
audio: あいことば (オリジナル:Snow Man)(ぐっすり眠れるピアノ2重奏)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.24
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.643
  additional property: Energy
    type: PropertyValue
    value: 0.226
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.94
  additional property: Liveness
    type: PropertyValue
    value: 0.2
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.203
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.343
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.43 J-POP
type: MusicAlbum
date published: 2023-04-07
track: セブンティーン (オリジナル:YOASOBI)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M26S
  duration ms: 206345
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.43 J-POP
    type: MusicAlbum
    date published: 2023-04-07
  genre: japanese-instrumental
  isrc code: JPB952306662
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T18:08:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8b64d02eee5a5b6b0e3ae9393f6291bd58ae3d874d65dee4efed322a02a0e174
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957122
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957122
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952306662
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:39:04Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b64d02eee5a5b6b0e3ae9393f6291bd58ae3d874d65dee4efed322a02a0e174. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952306662.
    date published: 2026-07-08T03:39:04Z
  audio: セブンティーン (オリジナル:YOASOBI)(アコースティック&エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.203
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.523
    additional property: Energy
      type: PropertyValue
      value: 0.393
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.974
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.962
    additional property: Liveness
      type: PropertyValue
      value: 0.116
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.594
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.316
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

ぐっすり眠れる癒しのピアノ2重奏 Vol.36 ~J-POP~
type: MusicAlbum
date published: 2023-04-07
track: そんなbitterな話 (ABEMA番組「花束とオオカミちゃんには騙されない」主題歌)(オリジナル:Vaundy)(ぐっすり眠れるピアノ2重奏)
  type: MusicRecording
  duration: PT5M54S
  duration ms: 354859
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: ぐっすり眠れる癒しのピアノ2重奏 Vol.36 ~J-POP~
    type: MusicAlbum
    date published: 2023-04-07
  genre: japanese-instrumental
  isrc code: JPB952306705
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T04:26:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd6eedba23b1dc0cfe881415666777dc3e61f8babc87a7aa2cb99af9b32302dd3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960513
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952306705
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T04:52:22Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6eedba23b1dc0cfe881415666777dc3e61f8babc87a7aa2cb99af9b32302dd3. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952306705.
    date published: 2026-08-01T04:52:22Z
  audio: そんなbitterな話 (ABEMA番組「花束とオオカミちゃんには騙されない」主題歌)(オリジナル:Vaundy)(ぐっすり眠れるピアノ2重奏)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.193
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.647
    additional property: Energy
      type: PropertyValue
      value: 0.244
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.986
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.922
    additional property: Liveness
      type: PropertyValue
      value: 0.115
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.258
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.714
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

眠りを誘う80年代シティポップピアノ Vol.1
type: MusicAlbum
date published: 2023-03-29

80年代シティポップピアノ Vol.1
type: MusicAlbum
date published: 2023-03-29

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.41 J-POP
type: MusicAlbum
date published: 2023-03-15
track: Paradise (映画ドラえもん「のび太と空の理想郷」主題歌)(オリジナル:NiZiU)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M27S
  duration ms: 207697
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.41 J-POP
    type: MusicAlbum
    date published: 2023-03-15
  genre: japanese-instrumental
  isrc code: JPB952305436
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-08T00:40:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb56972e8412da2cebf9de367b9923c79f63cbe2b5c2825ac51ddc47d5f1cf6eb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952305436
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56972e8412da2cebf9de367b9923c79f63cbe2b5c2825ac51ddc47d5f1cf6eb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952305436.
    date published: 2026-07-08T03:22:41Z
  audio: Paradise (映画ドラえもん「のび太と空の理想郷」主題歌)(オリジナル:NiZiU)(アコースティック&エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 165.585
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.521
    additional property: Energy
      type: PropertyValue
      value: 0.384
    additional property: Speechiness
      type: PropertyValue
      value: 0.04
    additional property: Acousticness
      type: PropertyValue
      value: 0.97
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.936
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.202
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.02
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: STARS (オリジナル:三代目 J Soul Brothers)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217650
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.41 J-POP
    type: MusicAlbum
    date published: 2023-03-15
  genre: japanese-instrumental
  isrc code: JPB952305439
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T03:07:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7994a8dfe6c2efed86550c5b5019cf2ce8bae73fa8456a3dcf049e16c113bbea
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960503
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960503
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952305439
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T03:41:24Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7994a8dfe6c2efed86550c5b5019cf2ce8bae73fa8456a3dcf049e16c113bbea. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952305439.
    date published: 2026-08-01T03:41:24Z
  audio: STARS (オリジナル:三代目 J Soul Brothers)(アコースティック&エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.378
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.582
    additional property: Energy
      type: PropertyValue
      value: 0.956
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.424
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.952
    additional property: Liveness
      type: PropertyValue
      value: 0.145
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.353
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.068
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

ぐっすり眠れる癒しのピアノ2重奏 Vol.34 ~J-POP~
type: MusicAlbum
date published: 2023-03-15
track: むちゃくちゃなフォーム (オリジナル:ジャニーズWEST)(ぐっすり眠れるピアノ2重奏)
  type: MusicRecording
  duration: PT6M39S
  duration ms: 399172
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: ぐっすり眠れる癒しのピアノ2重奏 Vol.34 ~J-POP~
    type: MusicAlbum
    date published: 2023-03-15
  genre: japanese-instrumental
  isrc code: JPB952305497
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T04:22:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x722df1ebc4ad577b6f9d5c5756108afea0e9842b2bf1a289735a30c0324f35d0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960513
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952305497
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T04:52:22Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722df1ebc4ad577b6f9d5c5756108afea0e9842b2bf1a289735a30c0324f35d0. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952305497.
    date published: 2026-08-01T04:52:22Z
  audio: むちゃくちゃなフォーム (オリジナル:ジャニーズWEST)(ぐっすり眠れるピアノ2重奏)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.322
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.642
    additional property: Energy
      type: PropertyValue
      value: 0.379
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.987
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.901
    additional property: Liveness
      type: PropertyValue
      value: 0.121
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.355
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.461
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Paradise (映画ドラえもん「のび太と空の理想郷」主題歌)(オリジナル:NiZiU)(ぐっすり眠れるピアノ2重奏)
  type: MusicRecording
  duration: PT4M25S
  duration ms: 265942
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: ぐっすり眠れる癒しのピアノ2重奏 Vol.34 ~J-POP~
    type: MusicAlbum
    date published: 2023-03-15
  genre: japanese-instrumental
  isrc code: JPB952305499
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T18:01:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x79ece34f6df68e1d6d02b1fcbbe691f71f3ef5f2e3bc60db903341d98c5544c4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952305499
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ece34f6df68e1d6d02b1fcbbe691f71f3ef5f2e3bc60db903341d98c5544c4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952305499.
    date published: 2026-07-08T03:20:19Z
  audio: Paradise (映画ドラえもん「のび太と空の理想郷」主題歌)(オリジナル:NiZiU)(ぐっすり眠れるピアノ2重奏)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.125
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.674
    additional property: Energy
      type: PropertyValue
      value: 0.335
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.981
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.959
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.184
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.121
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.40 J-POP
type: MusicAlbum
date published: 2023-03-06

ぐっすり眠れる癒しのオルゴール集 ~Vol.11 ディズニーサウンド
type: MusicAlbum
date published: 2023-03-06

アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.38 J-POP
type: MusicAlbum
date published: 2023-02-13
track: シンデレラガール (ドラマ「花のち晴れ~花男 Next Season~」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M11S
  duration ms: 251346
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.38 J-POP
    type: MusicAlbum
    date published: 2023-02-13
  genre: japanese-instrumental
  isrc code: JPB952303739
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T14:14:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbbd8089ffe8215febf12a3d0c9b0886c5ca759bba71a82387319d24e87a8219d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960264
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960264
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303739
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T14:36:16Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd8089ffe8215febf12a3d0c9b0886c5ca759bba71a82387319d24e87a8219d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303739.
    date published: 2026-07-30T14:36:16Z
  audio: シンデレラガール (ドラマ「花のち晴れ~花男 Next Season~」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.749
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.533
    additional property: Energy
      type: PropertyValue
      value: 0.37
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.95
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.948
    additional property: Liveness
      type: PropertyValue
      value: 0.158
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.369
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.58
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Memorial (ドラマ「部活、好きじゃなきゃダメですか?」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M42S
  duration ms: 282499
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.38 J-POP
    type: MusicAlbum
    date published: 2023-02-13
  genre: japanese-instrumental
  isrc code: JPB952303740
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T03:40:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1bcf07ac712c35853ae310f1a794076acee52a0e574e43c49c90d65639cdb2a5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960344
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960344
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303740
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T04:14:58Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bcf07ac712c35853ae310f1a794076acee52a0e574e43c49c90d65639cdb2a5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303740.
    date published: 2026-07-31T04:14:58Z
  audio: Memorial (ドラマ「部活、好きじゃなきゃダメですか?」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 131.607
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.599
    additional property: Energy
      type: PropertyValue
      value: 0.385
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.971
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.885
    additional property: Liveness
      type: PropertyValue
      value: 0.216
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.338
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.524
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 君を待ってる (UHA味覚糖「ぷっちょ」CMソング)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
  type: MusicRecording
  duration: PT4M39S
  duration ms: 279542
  explicit: false
  by artist: スイートピアノ・メロディーズ
  in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.38 J-POP
    type: MusicAlbum
    date published: 2023-02-13
  genre: japanese-instrumental
  isrc code: JPB952303741
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T20:50:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc08ad390f9fb8982bc42abe911fa7d2de482291e7d5e57d3e9b98bb5ded6ec77
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960314
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960314
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 君を待ってる (UHA味覚糖「ぷっちょ」CMソング)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
track: koi-wazurai (映画「かぐや様は告らせたい~天才たちの恋愛頭脳戦~」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
track: Mazy Night (ドラマ「未満警察 ミッドナイトランナー」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
track: I Promise (「セブン-イレブン」2020年クリスマスCMソング)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
track: タペストリー (映画「わたしの幸せな結婚」主題歌)(オリジナル:Snow Man)(アコースティック&エレクトリックピアノDUO)

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303741

OTSTimestamp
type: PropertyValue
value: 2026-07-30T21:00:46Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08ad390f9fb8982bc42abe911fa7d2de482291e7d5e57d3e9b98bb5ded6ec77. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303741.
date published: 2026-07-30T21:00:46Z

君を待ってる (UHA味覚糖「ぷっちょ」CMソング)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 135.001
additional property: Musical Key
  type: PropertyValue
  value: 3
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.593
additional property: Energy
  type: PropertyValue
  value: 0.346
additional property: Speechiness
  type: PropertyValue
  value: 0.034
additional property: Acousticness
  type: PropertyValue
  value: 0.977
additional property: Instrumentalness
  type: PropertyValue
  value: 0.917
additional property: Liveness
  type: PropertyValue
  value: 0.203
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.468
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.204
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Major

koi-wazurai (映画「かぐや様は告らせたい~天才たちの恋愛頭脳戦~」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
type: MusicRecording
duration: PT4M43S
duration ms: 283536
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.38 J-POP
  type: MusicAlbum
  date published: 2023-02-13
genre: japanese-instrumental
isrc code: JPB952303742
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-08-01T02:50:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x044f694ff9dee64ac66cc6f93fab3aed58beefbcfcdd0fa4e43979de0c2dabff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303742
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x044f694ff9dee64ac66cc6f93fab3aed58beefbcfcdd0fa4e43979de0c2dabff. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303742.
  date published: 2026-08-01T03:13:03Z
audio: koi-wazurai (映画「かぐや様は告らせたい~天才たちの恋愛頭脳戦~」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.214
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.564
  additional property: Energy
    type: PropertyValue
    value: 0.383
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.838
  additional property: Liveness
    type: PropertyValue
    value: 0.187
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.567
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.283
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mazy Night (ドラマ「未満警察 ミッドナイトランナー」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
type: MusicRecording
duration: PT4M36S
duration ms: 276128
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.38 J-POP
  type: MusicAlbum
  date published: 2023-02-13
genre: japanese-instrumental
isrc code: JPB952303743
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T12:00:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdaf75cde676de4dce5cfd6e0b02bb90cd17e7b5278fe6c895a1fc8eb25f0640b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960397
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960397
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303743
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T12:24:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf75cde676de4dce5cfd6e0b02bb90cd17e7b5278fe6c895a1fc8eb25f0640b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303743.
  date published: 2026-07-31T12:24:41Z
audio: Mazy Night (ドラマ「未満警察 ミッドナイトランナー」主題歌)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.454
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.348
  additional property: Energy
    type: PropertyValue
    value: 0.388
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.934
  additional property: Liveness
    type: PropertyValue
    value: 0.127
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.299
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.356
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

I Promise (「セブン-イレブン」2020年クリスマスCMソング)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
type: MusicRecording
duration: PT4M27S
duration ms: 267968
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.38 J-POP
  type: MusicAlbum
  date published: 2023-02-13
genre: japanese-instrumental
isrc code: JPB952303744
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T02:47:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x17ba9d0c8ecfee6affb211d3d29193c8402164e480b3fe0b3e93389781cd5ce4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960339
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960339
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303744
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T03:13:37Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ba9d0c8ecfee6affb211d3d29193c8402164e480b3fe0b3e93389781cd5ce4. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303744.
  date published: 2026-07-31T03:13:37Z
audio: I Promise (「セブン-イレブン」2020年クリスマスCMソング)(オリジナル:King & Prince)(アコースティック&エレクトリックピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.324
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.611
  additional property: Energy
    type: PropertyValue
    value: 0.336
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.894
  additional property: Liveness
    type: PropertyValue
    value: 0.184
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.436
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.746
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

タペストリー (映画「わたしの幸せな結婚」主題歌)(オリジナル:Snow Man)(アコースティック&エレクトリックピアノDUO)
type: MusicRecording
duration: PT3M55S
duration ms: 235634
explicit: false
by artist: スイートピアノ・メロディーズ
in album: アコースティックピアノとエレクトニックピアノが奏でる自然に心が落ちつくヒーリングサウンド集~Vol.38 J-POP
  type: MusicAlbum
  date published: 2023-02-13
genre: japanese-instrumental
isrc code: JPB952303747
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T15:43:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57734cdfa9e12ba387ea8c56de166f2c61ba6a2d6c0a6206ba28da1453b2e0fe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303747
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57734cdfa9e12ba387ea8c56de166f2c61ba6a2d6c0a6206ba28da1453b2e0fe. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB952303747.
  date published: 2026-07-02T03:30:09Z
audio: タペストリー (映画「わたしの幸せな結婚」主題歌)(オリジナル:Snow Man)(アコースティック&エレクトリックピアノDUO)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.334
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.596
  additional property: Energy
    type: PropertyValue
    value: 0.349
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.953
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.904
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.433
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.775
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major